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authorJordan Milne <jordan.milne@saynotolinux.com>2014-09-12 04:42:30 -0300
committerVicent Marti <tanoku@gmail.com>2014-09-17 16:21:24 +0200
commit3aa56049d4b52b55a2313e51698090ee81e10036 (patch)
tree79603c00f95a6f70eba44bb536c8970c8fe7ac97
parent118e3d3c39242225baa876319cdbfbb1adadc77b (diff)
Better handle trailing backslashes in ATX-style headers
Previously something like '# `\' would hang the parser while it waited for an extra character that wasn't there.
-rw-r--r--src/blocks.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/blocks.c b/src/blocks.c
index 2ac7032..5b38116 100644
--- a/src/blocks.c
+++ b/src/blocks.c
@@ -420,17 +420,17 @@ extern node_block *stmd_parse_document(const unsigned char *buffer, size_t len)
static void chop_trailing_hashtags(chunk *ch)
{
- int n;
+ int n, orig_n;
chunk_rtrim(ch);
- n = ch->len - 1;
+ orig_n = n = ch->len - 1;
// if string ends in #s, remove these:
while (n >= 0 && peek_at(ch, n) == '#')
n--;
// the last # was escaped, so we include it.
- if (n >= 0 && peek_at(ch, n) == '\\')
+ if (n != orig_n && n >= 0 && peek_at(ch, n) == '\\')
n++;
ch->len = n + 1;